GB2271905B - Sampling rate conversion using polyphase filters with interpolation - Google Patents
Sampling rate conversion using polyphase filters with interpolationInfo
- Publication number
- GB2271905B GB2271905B GB9320154A GB9320154A GB2271905B GB 2271905 B GB2271905 B GB 2271905B GB 9320154 A GB9320154 A GB 9320154A GB 9320154 A GB9320154 A GB 9320154A GB 2271905 B GB2271905 B GB 2271905B
- Authority
- GB
- United Kingdom
- Prior art keywords
- interpolation
- sampling rate
- rate conversion
- polyphase filters
- polyphase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
- H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
- H03H17/0685—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being rational
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0248—Filters characterised by a particular frequency response or filtering method
- H03H17/0264—Filter sets with mutual related characteristics
- H03H17/0273—Polyphase filters
- H03H17/0275—Polyphase filters comprising non-recursive filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0102—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving the resampling of the incoming video signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0223—Computation saving measures; Accelerating measures
- H03H2017/0247—Parallel structures using a slower clock
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Television Systems (AREA)
- Television Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/965,813 US5274372A (en) | 1992-10-23 | 1992-10-23 | Sampling rate conversion using polyphase filters with interpolation |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9320154D0 GB9320154D0 (en) | 1993-11-17 |
GB2271905A GB2271905A (en) | 1994-04-27 |
GB2271905B true GB2271905B (en) | 1996-05-15 |
Family
ID=25510526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9320154A Expired - Fee Related GB2271905B (en) | 1992-10-23 | 1993-09-30 | Sampling rate conversion using polyphase filters with interpolation |
Country Status (4)
Country | Link |
---|---|
US (1) | US5274372A (en) |
JP (1) | JPH06204797A (en) |
DE (1) | DE4336331A1 (en) |
GB (1) | GB2271905B (en) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5504785A (en) * | 1993-05-28 | 1996-04-02 | Tv/Com Technologies, Inc. | Digital receiver for variable symbol rate communications |
FR2722051B1 (en) * | 1994-07-01 | 1996-08-02 | Thomson Consumer Electronics | METHOD AND DEVICE FOR ASYNCHRONOUS DATA ON A DIGITAL SIGNAL |
US5594675A (en) * | 1994-07-14 | 1997-01-14 | Industrial Technology Research Institute | Reduced signal processing requirement sample and hold linear phase interpolative fir filter |
US5613084A (en) * | 1994-10-04 | 1997-03-18 | Panasonic Technologies, Inc. | Interpolation filter selection circuit for sample rate conversion using phase quantization |
US5610942A (en) * | 1995-03-07 | 1997-03-11 | Chen; Keping | Digital signal transcoder and method of transcoding a digital signal |
US5528301A (en) * | 1995-03-31 | 1996-06-18 | Panasonic Technologies, Inc. | Universal video format sample size converter |
US5606319A (en) * | 1995-08-07 | 1997-02-25 | Motorola, Inc. | Method and apparatus for interpolation and noise shaping in a signal converter |
US5587742A (en) * | 1995-08-25 | 1996-12-24 | Panasonic Technologies, Inc. | Flexible parallel processing architecture for video resizing |
KR0170301B1 (en) * | 1995-10-30 | 1999-04-15 | 김광호 | Integrated phase filter and timing error compensation device thereof and method therefor |
US5991463A (en) | 1995-11-08 | 1999-11-23 | Genesis Microchip Inc. | Source data interpolation method and apparatus |
GB2307129B (en) * | 1995-11-09 | 2000-01-26 | Sony Uk Ltd | Video down-conversion |
US5777679A (en) * | 1996-03-15 | 1998-07-07 | International Business Machines Corporation | Video decoder including polyphase fir horizontal filter |
US6067071A (en) * | 1996-06-27 | 2000-05-23 | Cirrus Logic, Inc. | Method and apparatus for expanding graphics images for LCD panels |
US6542150B1 (en) * | 1996-06-28 | 2003-04-01 | Cirrus Logic, Inc. | Method and apparatus for asynchronous display of graphic images |
US6618443B1 (en) | 1997-03-12 | 2003-09-09 | Matsushita Electric Industrial Co., Ltd. | Upsampling filter for a down conversion system |
US6788347B1 (en) * | 1997-03-12 | 2004-09-07 | Matsushita Electric Industrial Co., Ltd. | HDTV downconversion system |
WO1998041011A1 (en) | 1997-03-12 | 1998-09-17 | Matsushita Electric Industrial Co., Ltd. | Hdtv downconversion system |
US6175592B1 (en) | 1997-03-12 | 2001-01-16 | Matsushita Electric Industrial Co., Ltd. | Frequency domain filtering for down conversion of a DCT encoded picture |
JP3917190B2 (en) * | 1997-04-16 | 2007-05-23 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Synchronous sigma-delta modulator |
US6087968A (en) * | 1997-04-16 | 2000-07-11 | U.S. Philips Corporation | Analog to digital converter comprising an asynchronous sigma delta modulator and decimating digital filter |
US6281873B1 (en) * | 1997-10-09 | 2001-08-28 | Fairchild Semiconductor Corporation | Video line rate vertical scaler |
US5973740A (en) * | 1997-10-27 | 1999-10-26 | International Business Machines Corporation | Multi-format reduced memory video decoder with adjustable polyphase expansion filter |
FR2780830B1 (en) * | 1998-07-06 | 2000-09-22 | St Microelectronics Sa | PARALLEL SURCHANTILLON DECIMATOR FILTER |
US6487249B2 (en) | 1998-10-09 | 2002-11-26 | Matsushita Electric Industrial Co., Ltd. | Efficient down conversion system for 2:1 decimation |
US6057789A (en) * | 1998-10-29 | 2000-05-02 | Neomagic Corp. | Re-synchronization of independently-clocked audio streams by dynamically switching among 3 ratios for sampling-rate-conversion |
US6252919B1 (en) | 1998-12-17 | 2001-06-26 | Neomagic Corp. | Re-synchronization of independently-clocked audio streams by fading-in with a fractional sample over multiple periods for sample-rate conversion |
JP2002543651A (en) | 1999-04-22 | 2002-12-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Sample rate converter |
US6590510B2 (en) | 2000-06-16 | 2003-07-08 | Lionel Jacques Woog | Sample rate converter |
GB0018490D0 (en) * | 2000-07-27 | 2000-09-13 | Element 14 Inc | Digital/analogue communication system |
DE10045547A1 (en) * | 2000-09-14 | 2002-04-04 | Infineon Technologies Ag | Method for the system-independent digital generation of mobile communication transmission signals of various mobile radio standards |
KR100421001B1 (en) * | 2001-02-20 | 2004-03-03 | 삼성전자주식회사 | Sampling rate conversion apparatus and method thereof |
DE10112275B4 (en) * | 2001-03-14 | 2005-01-20 | Rohde & Schwarz Gmbh & Co. Kg | interpolator |
DE60140805D1 (en) * | 2001-10-10 | 2010-01-28 | Texas Instruments Inc | Device and method for image scaling |
DE10205305A1 (en) * | 2002-02-08 | 2003-08-28 | Infineon Technologies Ag | Clock control of transmission signal processing devices in mobile radio terminals |
US7245237B2 (en) * | 2002-09-17 | 2007-07-17 | Intel Corporation | Digital sampling rate conversion using a poly-phase filter and a polynomial interpolator |
US6876319B2 (en) * | 2002-09-20 | 2005-04-05 | Intersil Americas Inc. | Integrated modulator and demodulator configuration |
WO2004095838A1 (en) * | 2003-04-24 | 2004-11-04 | Koninklijke Philips Electronics N.V. | Combined sampling rate conversion and gain-controlled filtering |
JP2005217837A (en) * | 2004-01-30 | 2005-08-11 | Sony Corp | Sampling rate conversion apparatus and method thereof, and audio apparatus |
US8417066B2 (en) * | 2004-03-04 | 2013-04-09 | Broadcom Corporation | Method and system for polyphase filtering by combining IIR and FIR filters and its applications in video scaling |
US7406134B1 (en) | 2004-03-04 | 2008-07-29 | Altera Corporation | Very high data rate up-conversion in FPGAs |
US7196642B2 (en) * | 2005-08-24 | 2007-03-27 | Seiko Epson Corporation | Circuitry and method for sampling audio data |
US7920078B2 (en) * | 2009-06-19 | 2011-04-05 | Conexant Systems, Inc. | Systems and methods for variable rate conversion |
US8619840B2 (en) * | 2010-02-26 | 2013-12-31 | Qualcomm Incorporated | Apparatus and methods for sampling rate conversion for wireless transceivers |
US8477056B2 (en) * | 2010-06-01 | 2013-07-02 | Infinera Corporation | Method, system, and apparatus for interpolating an output of an analog-to-digital converter |
US8768995B2 (en) * | 2010-08-31 | 2014-07-01 | Telefonaktiebolaget L.M. Ericsson (Publ) | Multi-branch rate change filter |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2240684A (en) * | 1990-02-06 | 1991-08-07 | Sony Corp | Cascaded digital signal interpolator |
GB2255469A (en) * | 1991-04-12 | 1992-11-04 | Abekas Video Systems | Digital sample rate converter. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS617714A (en) * | 1984-06-22 | 1986-01-14 | Nec Corp | Inserted filter |
JP2731151B2 (en) * | 1987-09-18 | 1998-03-25 | 株式会社東芝 | Phase information detection circuit |
JPS6477327A (en) * | 1987-09-18 | 1989-03-23 | Toshiba Corp | Sample rate converting circuit |
JPH01319319A (en) * | 1988-06-21 | 1989-12-25 | Nec Corp | Variable frequency band pass filter |
JPH0716146B2 (en) * | 1988-11-14 | 1995-02-22 | シャープ株式会社 | Interfield interpolation filter |
JPH10294646A (en) * | 1990-02-16 | 1998-11-04 | Sony Corp | Sampling rate conversion device |
EP0444368B1 (en) * | 1990-02-28 | 1997-12-29 | Texas Instruments France | Digital Filtering with SIMD-processor |
JPH03261212A (en) * | 1990-03-12 | 1991-11-21 | Matsushita Electric Ind Co Ltd | Digital filter circuit |
JPH03261213A (en) * | 1990-03-12 | 1991-11-21 | Matsushita Electric Ind Co Ltd | Digital filter circuit |
JPH0490211A (en) * | 1990-08-02 | 1992-03-24 | Yamaha Corp | Two-dimensional interpolation filter circuit |
-
1992
- 1992-10-23 US US07/965,813 patent/US5274372A/en not_active Expired - Lifetime
-
1993
- 1993-09-30 GB GB9320154A patent/GB2271905B/en not_active Expired - Fee Related
- 1993-10-06 JP JP5275026A patent/JPH06204797A/en active Pending
- 1993-10-25 DE DE4336331A patent/DE4336331A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2240684A (en) * | 1990-02-06 | 1991-08-07 | Sony Corp | Cascaded digital signal interpolator |
GB2255469A (en) * | 1991-04-12 | 1992-11-04 | Abekas Video Systems | Digital sample rate converter. |
Also Published As
Publication number | Publication date |
---|---|
GB9320154D0 (en) | 1993-11-17 |
GB2271905A (en) | 1994-04-27 |
DE4336331A1 (en) | 1994-04-28 |
US5274372A (en) | 1993-12-28 |
JPH06204797A (en) | 1994-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20010930 |